Sanghoon Baek

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20122023

most citedSemiorthogonal decompositions for twisted grassmannians

2 citations · 2 across the 5 of their papers we have counts for

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math.RA2014

A lower bound on the essential dimension of $PGL_{4}$ in characteristic $2$

Sanghoon Baek

In the present paper, we provide a lower bound of the essential dimension over a field of positive characteristic via Kato's cohomology group, defined by cokernel of a general Arti…

math.RA2012

On the exponent of spinor groups

Sanghoon Baek

In this paper, we show that all the exponents of degree greater than 2 of spinor groups divide the Dynkin index 2.

A lower bound on the essential dimension of PGL4​ in characteristic 2

On the exponent of spinor groups

A lower bound on the essential dimension of $PGL_{4}$ in characteristic $2$